Re: [PATCH] Revert "iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions"

2020-09-24 Thread Joerg Roedel
On Wed, Sep 23, 2020 at 10:26:55AM +0800, Baoquan He wrote: > A regression failure of kdump kernel boot was reported on a HPE system. > Bisect points at commit 387caf0b759ac43 ("iommu/amd: Treat per-device > exclusion ranges as r/w unity-mapped regions") as criminal. Reverting it > fix the failure.

RE: [External] Re: [PATCH] Revert "iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions"

2020-09-23 Thread Adrian Huang12
ert "iommu/amd: Treat per-device exclusion > ranges as r/w unity-mapped regions" > > Forgot CC-ing Jerry, add him. > > On 09/23/20 at 10:26am, Baoquan He wrote: > > A regression failure of kdump kernel boot was reported on a HPE system. > > Bisect poin

Re: [PATCH] Revert "iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions"

2020-09-22 Thread Baoquan He
Forgot CC-ing Jerry, add him. On 09/23/20 at 10:26am, Baoquan He wrote: > A regression failure of kdump kernel boot was reported on a HPE system. > Bisect points at commit 387caf0b759ac43 ("iommu/amd: Treat per-device > exclusion ranges as r/w unity-mapped regions") as criminal. Reverting it > fix

[PATCH] Revert "iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions"

2020-09-22 Thread Baoquan He
A regression failure of kdump kernel boot was reported on a HPE system. Bisect points at commit 387caf0b759ac43 ("iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions") as criminal. Reverting it fix the failure. With the commit, kdump kernel will always print below error messag